//************************************************************************
//*	Print.cpp
//*	
//*	Arduino core files for PIC32
//*		Copyright (c) 2010, 2011 by Mark Sproul
//*	
//*	This file has very little modifcation from the standard Arduino Print.cpp
//************************************************************************
//*	
//*	Print.cpp - Base class that provides print() and println()
//*	Copyright (c) 2008 David A. Mellis.  All right reserved.
//*	
//*	This library is free software; you can redistribute it and/or
//*	modify it under the terms of the GNU Lesser General Public
//*	License as published by the Free Software Foundation; either
//*	version 2.1 of the License, or (at your option) any later version.
//*	
//*	This library is distributed in the hope that it will be useful,
//*	but WITHOUT ANY WARRANTY; without even the implied warranty of
//*	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
//*	Lesser General Public License for more details.
//*	
//*	You should have received a copy of the GNU Lesser General Public
//*	License along with this library; if not, write to the Free Software
//*	Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
//*	
//************************************************************************

#include <stdio.h>
#include <string.h>
#include <math.h>
#include "wiring.h"

#include "Print.h"

// Public Methods //////////////////////////////////////////////////////////////

//************************************************************************
/* default implementation: may be overridden */
//************************************************************************
void Print::write(const char *str)
{
	while (*str)
	{
		write(*str++);
	}
}

//************************************************************************
/* default implementation: may be overridden */
//************************************************************************
void Print::write(const uint8_t *buffer, size_t size)
{
	while (size--)
	{
		write(*buffer++);
	}
}

//************************************************************************
void Print::print(const char str[])
{
	write(str);
}

//************************************************************************
void Print::print(char c, int base)
{
	print((long) c, base);
}

//************************************************************************
void Print::print(unsigned char b, int base)
{
	print((unsigned long) b, base);
}

//************************************************************************
void Print::print(int n, int base)
{
	print((long) n, base);
}

//************************************************************************
void Print::print(unsigned int n, int base)
{
	print((unsigned long) n, base);
}

//************************************************************************
void Print::print(long n, int base)
{
	if (base == 0)
	{
		write(n);
	}
	else if (base == 10)
	{
		if (n < 0)
		{
			print('-');
			n = -n;
		}
		printNumber(n, 10);
	}
	else
	{
		printNumber(n, base);
	}
}

//************************************************************************
void Print::print(unsigned long n, int base)
{
	if (base == 0)
	{
		write(n);
	}
	else
	{
		printNumber(n, base);
	}
}

//************************************************************************
void Print::print(double n, int digits)
{
	printFloat(n, digits);
}

//************************************************************************
void Print::println(void)
{
	print('\r');
	print('\n');
}

//************************************************************************
void Print::println(const char c[])
{
	print(c);
	println();
}

//************************************************************************
void Print::println(char c, int base)
{
	print(c, base);
	println();
}

//************************************************************************
void Print::println(unsigned char b, int base)
{
	print(b, base);
	println();
}

//************************************************************************
void Print::println(int n, int base)
{
	print(n, base);
	println();
}

//************************************************************************
void Print::println(unsigned int n, int base)
{
	print(n, base);
	println();
}

//************************************************************************
void Print::println(long n, int base)
{
	print(n, base);
	println();
}

//************************************************************************
void Print::println(unsigned long n, int base)
{
	print(n, base);
	println();
}

//************************************************************************
void Print::println(double n, int digits)
{
	print(n, digits);
	println();
}

// Private Methods /////////////////////////////////////////////////////////////

//************************************************************************
void Print::printNumber(unsigned long n, uint8_t base)
{
unsigned char buf[8 * sizeof(long)]; // Assumes 8-bit chars.
unsigned long i = 0;

	if (n == 0)
	{
		print('0');
		return;
	}

	while (n > 0)
	{
		buf[i++] = n % base;
		n /= base;
	}

	for (; i > 0; i--)
	{
		print((char) (buf[i - 1] < 10 ?
					'0' + buf[i - 1] :
					'A' + buf[i - 1] - 10));
	}
}

//************************************************************************
void Print::printFloat(double number, uint8_t digits)
{
	// Handle negative numbers
	if (number < 0.0)
	{
		 print('-');
		 number = -number;
	}

	// Round correctly so that print(1.999, 2) prints as "2.00"
	double rounding = 0.5;
	for (uint8_t i=0; i<digits; ++i)
		rounding /= 10.0;

	number += rounding;

	// Extract the integer part of the number and print it
	unsigned long int_part = (unsigned long)number;
	double remainder = number - (double)int_part;
	print(int_part);

	// Print the decimal point, but only if there are digits beyond
	if (digits > 0)
		print(".");

	// Extract digits from the remainder one at a time
	while (digits-- > 0)
	{
		remainder *= 10.0;
		int toPrint = int(remainder);
		print(toPrint);
		remainder -= toPrint;
	}
}
